@article{DAN_1961_137_5_a12,
     author = {M. B. Kapilevich},
     title = {Tricomi{\textquoteright}s singular problems in the neighborhood of a finite and infinite singular line},
     journal = {Doklady Akademii Nauk},
     pages = {1053--1056},
     publisher = {mathdoc},
     volume = {137},
     number = {5},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_5_a12/}
}